diff --git a/include/authentication.hpp b/include/authentication.hpp
index 3c1ca48..8d59be4 100644
--- a/include/authentication.hpp
+++ b/include/authentication.hpp
@@ -21,7 +21,7 @@
 namespace authentication
 {
 
-static void cleanupTempSession(Request& req)
+static void cleanupTempSession(const Request& req)
 {
     // TODO(ed) THis should really be handled by the persistent data
     // middleware, but because it is upstream, it doesn't have access to the
@@ -260,7 +260,7 @@
 
 [[maybe_unused]] static std::shared_ptr<persistent_data::UserSession>
     authenticate(
-        boost::asio::ip::address& ipAddress [[maybe_unused]],
+        const boost::asio::ip::address& ipAddress [[maybe_unused]],
         Response& res [[maybe_unused]], boost::beast::http::verb method,
         const boost::beast::http::header<true>& reqHeader,
         [[maybe_unused]] const std::shared_ptr<persistent_data::UserSession>&
diff --git a/include/ibm/management_console_rest.hpp b/include/ibm/management_console_rest.hpp
index 2bede28..8d50c9f 100644
--- a/include/ibm/management_console_rest.hpp
+++ b/include/ibm/management_console_rest.hpp
@@ -520,7 +520,7 @@
         returnJson["LockType"] = std::get<2>(var.second);
         returnJson["ResourceID"] = std::get<3>(var.second);
 
-        for (auto& i : std::get<4>(var.second))
+        for (const auto& i : std::get<4>(var.second))
         {
             segments["LockFlag"] = i.first;
             segments["SegmentLength"] = i.second;
@@ -588,7 +588,7 @@
     returnJson["LockType"] = std::get<2>(var.second);
     returnJson["ResourceID"] = std::get<3>(var.second);
 
-    for (auto& i : std::get<4>(var.second))
+    for (const auto& i : std::get<4>(var.second))
     {
         segments["LockFlag"] = i.first;
         segments["SegmentLength"] = i.second;
diff --git a/include/openbmc_dbus_rest.hpp b/include/openbmc_dbus_rest.hpp
index 0e2af70..d0bc29c 100644
--- a/include/openbmc_dbus_rest.hpp
+++ b/include/openbmc_dbus_rest.hpp
@@ -2340,7 +2340,7 @@
                     nlohmann::json& propertyItem = propertiesObj[name];
                     crow::connections::systemBus->async_send(
                         m, [&propertyItem,
-                            asyncResp](boost::system::error_code& e,
+                            asyncResp](const boost::system::error_code& e,
                                        sdbusplus::message::message& msg) {
                             if (e)
                             {
@@ -2420,7 +2420,7 @@
                 std::sort(names.begin(), names.end());
                 asyncResp->res.jsonValue["status"] = "ok";
                 auto& objectsSub = asyncResp->res.jsonValue["objects"];
-                for (auto& name : names)
+                for (const auto& name : names)
                 {
                     nlohmann::json::object_t object;
                     object["name"] = name;